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Finding the Fourth Proportional to 609,739.20, 912,859.20 and 592,243.20

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Solution

The fourth proportional to 609,739.20, 912,859.20 and 592,243.20 is: 886,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,739.20 : 912,859.20 = 592,243.20 : x
  2. Step 2: Convert to fraction form
    609,739.20/912,859.20 = 592,243.20/x
  3. Step 3: Cross multiply
    609,739.20x = 912,859.20 × 592,243.20
  4. Step 4: Simplify right side
    609,739.20x = 540,634,653,757.44
  5. Step 5: Solve for x
    x = 540,634,653,757.44/609,739.20
  6. Step 6: Final answer
    x = 886,665.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.